What oil has zinc now?
2shelbys,
I noticed the reference in the thread to composite lifers.
I have tried two sets of ceramics (full custom made radial lifters - see pix) - both sets caused cam failure in street use. Both lived well through break in and multiple dyno runs but ultimately wiped the cam. Admittedly street duty with high velocity ramps / big lift can be very rough on a cam - tried multiple profiles. Great power but not life. Both lifter sets were made by Joe Shubeck - he supplied the cam as well.
In any case, I can not speak for all ceramic lifters - but I have a very lightened wallet that says they are not for street use.
Kory
2shelbys,
I noticed the reference in the thread to composite lifers.
I have tried two sets of ceramics (full custom made radial lifters - see pix) - both sets caused cam failure in street use. Both lived well through break in and multiple dyno runs but ultimately wiped the cam. Admittedly street duty with high velocity ramps / big lift can be very rough on a cam - tried multiple profiles. Great power but not life. Both lifter sets were made by Joe Shubeck - he supplied the cam as well.
In any case, I can not speak for all ceramic lifters - but I have a very lightened wallet that says they are not for street use.
Kory